Bump slpjs from 0.27.1 to 0.27.11

Bumps [slpjs](https://github.com/simpleledger/slpjs) from 0.27.1 to 0.27.11.
- [Release notes](https://github.com/simpleledger/slpjs/releases)
- [Commits](https://github.com/simpleledger/slpjs/commits/0.27.11)

---
updated-dependencies:
- dependency-name: slpjs
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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Author: dependabot[bot]